CVE-2026-57231

Podman is a tool for managing OCI containers and pods. From 1.8.1 until 5.8.4, a container image that contains a environment variable with just a key and no value can trick podman into passing that variable from the host into the container. This is made worse by the fact that using an asterisk (*) will cause podman to pass all host variables into the container. So essentially a malicious image can exfiltrate all podman environment variables that are set in the session from where the container is launched. This vulnerability is fixed in 5.8.4 and 6.0.0.

Affected products

Podman, Red Os, Rocky Linux

Podman Project Podman

< 5.8.4, 6.0.0

Fix

Available

CVSS 3.1

7.5 HIGH

EPSS

0.3% (24th percentile)

Weakness

CWE-668, CWE-200

NVD status

Analyzed

Published

2026-06-26

No exploit for CVE-2026-57231 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.